EP2356711A1 - Organische leuchtdiode mit optischem resonator nebst herstellungsverfahren - Google Patents
Organische leuchtdiode mit optischem resonator nebst herstellungsverfahrenInfo
- Publication number
- EP2356711A1 EP2356711A1 EP09784011A EP09784011A EP2356711A1 EP 2356711 A1 EP2356711 A1 EP 2356711A1 EP 09784011 A EP09784011 A EP 09784011A EP 09784011 A EP09784011 A EP 09784011A EP 2356711 A1 EP2356711 A1 EP 2356711A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- light
- emitting diode
- optical resonator
- different
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/852—Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/351—Thickness
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/20—Changing the shape of the active layer in the devices, e.g. patterning
- H10K71/231—Changing the shape of the active layer in the devices, e.g. patterning by etching of existing layers
- H10K71/233—Changing the shape of the active layer in the devices, e.g. patterning by etching of existing layers by photolithographic etching
Definitions
- the invention relates to organic light-emitting diodes, known by the abbreviation OLED, and to a process for the production of such organic light-emitting diodes.
- An organic light-emitting diode is a luminous component consisting of organic semiconductors.
- Organic light emitting diodes consist of one or more organic, thin layers, which are arranged between electrically conductive electrodes.
- An organic light-emitting diode comprises an anode applied, for example, on a glass pane, the z. B. from indium tin oxide (ITO), and which is transparent in the visible range. Above the anode is often a hole line layer.
- This hole-conducting layer can consist, for example, of PEDOT / PSS (poly (3,4-ethylenedioxythiophene) / polystyrene sulfonate), which serves to lower the injection barrier for the holes and serves as a diffusion barrier for indium.
- PEDOT / PSS poly (3,4-ethylenedioxythiophene) / polystyrene sulfonate
- an emitter layer which either contains a dye (about 5-1%) or consists entirely of the dye (for example aluminum tris (8-hydroxyquinoline), Alq 3 ). On this often an electron conduction layer is applied.
- a cathode with low electron work function consisting of a metal or an alloy such as calcium, aluminum, barium, ruthenium, magnesium-silver alloy, for example, vapor-deposited in a high vacuum. To reduce the injection barrier for electrons, the cathode is deposited regularly as a double layer consisting of a very thin layer of lithium fluoride, cesium fluoride, calcium or barium and a thicker layer of aluminum or silver.
- cathode layers having a multilayer structure such as lithium fluoride / calcium / aluminum or barium / silver
- the function of lithium fluoride or calcium or barium is to inject electrons into the underlying layer.
- the thickness of the lithium fluoride layer is a few nanometers.
- the thickness of the barium or calcium layer can be up to 1 00 nm.
- the function of the aluminum or silver layer is to remove most of the charges from the cathode terminal to the light emitting element, i. H . to transport to the light-emitting layer.
- the thickness of this layer is in the range of 0, 1 to 2 microns.
- the layer of lithium fluoride, calcium or Bariu m forms the so-called. Electron injection layer, the aluminum / silver layer, the electrically conductive layer of the cathode. In addition, the aluminum or silver layer protects the still sensitive and reactive electron injection layer.
- the electrons that is, the negative charges are injected from the cathode, while the anode provides the holes or holes, that is, the positive charges.
- Positive and negative charges migrate towards each other due to an applied electric field and ideally meet in the emitter layer, which is why this layer is also called a recombination layer.
- Recombination of an electron and a hole in the emitter layer creates a so-called exciton.
- the exciton already represents the excited state of the dye molecule, or else the energy of the exciton is transferred to the dye molecule in a transfer process.
- the dye has different states of excitation.
- the excited state can transition to the ground state, emitting a photon (light particle).
- the color of the emitted light depends on the energy gap between excited and ground state and can be selectively changed by variation or chemical modification of the dye molecules.
- Organic light emitting diodes are mainly used in displays for computers, TVs, MP3 players, etc. or as a light source in Lighting applications. OLEDs are increasingly being considered as light sources for applications in sensor technology.
- organic light-emitting diodes are to be used in full-color displays, this presupposes that at least three primary colors can be generated independently of one another.
- the display then includes a plurality of individual pixels or light emitting diodes that can emit different colored light, wherein the generation of light by each pixel can be electronically controlled.
- a light source may also comprise a plurality of pixels or organic light-emitting diodes, which can generate different light colors. However, this division serves only to be able to produce the desired light color, so for example, white light by the pixels emit the three basic colors red, green and blue suitably distributed.
- organic light-emitting diodes are to be used in sensor technology, it depends on the particular application whether multicolor-emitting, individually controllable pixels are required or not. Due to the light sources used in sensor technology (eg LEDs) - spectrally broad emission of most known from the prior art organic light-emitting diodes, the use of different colored emitting pixels with the prior art is often not meaningful possible.
- a typical small molecule that is applied by thermal evaporation is the metal complex Alq 3 .
- AIq 3 emits green light. By adding dyes, the emission color of AIq 3 can be changed.
- other metal complexes or other small molecules can be used to generate other colors that are not achievable by Alq 3 or modified Alq 3 .
- Thermal evaporation is preferred because no solvents have to be used, although the performance of such a process is expensive. If a solvent is used, there is a risk of contamination of the material with a negative impact on the efficiency of an organic light emitting diode and its lifetime.
- a shadow mask which is used for the structuring described, is similar to a perforated screen.
- the shadow mask has openings at the locations to which the respective molecule is to reach a subjacent substrate. After a first deposition of first molecules through the openings of the shadow mask, the shadow mask is appropriately shifted or exchanged by a second shadow mask, and second molecules emitting a different light color are deposited through the holes of the shadow mask on the underlying substrate. In the same way, third molecules are deposited in a third step.
- a mixed material or multilayer structure which emits white light and uses it for all subpixels.
- Suitable material mixtures / multi-layer structures can be made of polymers or small molecules such.
- metal complexes exist. In the latter case, metal complexes are often preferred because they currently allow greater brightness.
- such a material mixture or such a multi-layer structure comprises components which emit the three primary colors and thus finally emit white light.
- a matrix of color filters Such a matrix or color filter array is produced from colored photoresists.
- z See, for example, the references "I Underwood et al., SID 04 Digest, pp. 293-295 (2004)” and "B.J. Green, Displays 1 0 (3), p. 1 81-1884 (1,989)" refer to.
- an organic light-emitting diode which comprises a lossy optical resonator.
- a layer system consisting of a hole injection layer, a hole transport layer, an emitter layer and an electron transport layer.
- the light color produced by this organic light emitting diode is adjusted by the distance between the two reflective electrode layers.
- the thickness of the hole injection layer is varied.
- the different layers are evaporated.
- small molecules are deposited in different thicknesses. In order to produce three different layer thicknesses defined, it is necessary during vapor deposition to use shadow masks and to align accordingly.
- US Pat. No. 6,091,197 likewise discloses an organic light-emitting diode with a lossy optical resonator in which a layer is arranged which is capable of producing white light. The distance between the two reflecting layers of the optical resonator determines the light color that emerges from the organic light emitting diode. This distance can be changed by means of an electromechanical control so as to be able to change the light color of the organic light emitting diode.
- the prior art known from US Pat. No. 6,091,197 is suitable for producing a light source in which a desired light color can be set and changed at any time. For further applications, however, the known invention is unsuitable.
- the article is not suitable for use as a display because an electric field must be constantly applied to maintain a desired emission color.
- the preparation and arrangement of the flexible membrane is relatively expensive, so that the creation of a low-cost white light source, a light source for sensory applications em ittiert the light of different colors, or a spectrometer with this object is also not possible.
- the object of the invention is to provide a simpler to produce organic light emitting diode.
- an OLED or organic light-emitting diode with an emitter layer is produced, which in particular emits white light.
- the emitter layer is disposed within a lossy optical resonator.
- An optical resonator is an arrangement of two reflective layers which serves to direct light towards and to reflect. In the resonator, a standing wave is formed when the optical path length of the resonator is a multiple of the wavelength of the emitted light.
- a light beam can escape from a lossy resonator after a few reflections from the arrangement.
- a reflective layer of the resonator reflects only partially and is also partially transparent to light, so that light is coupled out via this partially reflecting or partially reflecting layer.
- the other reflective layer of the lossy optical resonator preferably reflects light as completely as possible in order to achieve good efficiencies.
- the optical path length between the two reflective layers of the resonator determines the color of the light emerging from the optical resonator and thus from the light emitting diode.
- the color of the light emerging from the light-emitting diode is therefore set by distances.
- different optical path lengths between the two reflective surfaces must be present, as can be seen, for example, the publications US 6,091, 1 97 and US 2007/0286944 Al.
- the corresponding different distances can be produced in contrast to the prior art according to the invention in only one step by a photolithographic process.
- the result is an organic light-emitting diode with a lossy optical resonator, in which there is an emitter layer and a layer which can be patterned by photolithography.
- This layer consisting of photochemically crosslinkable materials has different layer thicknesses so as to provide different optical path lengths.
- the layer consists of photochemically crosslinkable, electrically conductive or semiconducting materials. These electrically conductive or semiconductive negative photoresists become completely or partially insoluble upon exposure. The unexposed areas remain soluble. Also comparable acting materials can be used. As a material so for example, an electrically conductive or semiconductive positive photoresist into consideration, the whole by exposure or partially soluble. The unexposed areas thus remain insoluble here.
- the light color of the light emerging from the organic light-emitting diode is determined by the formation of the standing waves in the lossy optical resonator. Although there are also other wavelengths of light. However, if necessary, due to the resonator, the corresponding desired color can be amplified so that the corresponding wavelength far outweighs.
- the reflecting layers of the optical resonator are made of metal for the sake of simplicity. In principle, other materials come into consideration, such as dielectric layer stack, which are provided in connection with Bragg mirrors.
- a reflective layer of the optical resonator consists in particular of Ag, Al, Au, or it is one or more Bragg mirrors. In the case of Bragg reflections, a plurality of stacked Bragg mirrors are typically provided to reflect the entire light spectrum. If a reflective layer is to be partially transparent, then the layer thickness is suitably chosen to be thin, such as, for example, 1 0 to 1 00 nm thin layer consisting of silver, aluminum, gold, copper, titanium or nickel.
- the emitter layer that is to say the layer which emits light
- the layer which emits light can be of different thickness and consist of a photochemically crosslinkable material.
- the organic light-emitting diode within the optical resonator comprises an additional layer (in addition to the emitter layer), in particular a hole or electron conductor layer of varying thickness, which consists of the photocrosslinkable material.
- the emitter layer can now consist of non-photochemically crosslinkable material.
- the material of Emitter layer can therefore be chosen correspondingly more freely and the emitter layer can be optimized more easily with regard to the generation of light.
- An emitter layer is preferably formed by an RGB copolymer.
- An RGB copolymer emits at least red, green and blue light.
- the emitter layer may be a mixture of red, green and blue emitting components or a layer system comprising a red light emitting layer, a green light emitting layer and a blue light emitting layer.
- the structuring according to the invention does not take place with the aid of a black-and-white shadow mask but with the aid of a gray scale mask, that is to say a mask which has different light transmission at different locations.
- the grayscale mask may be a glass plate coated with metallic layers of different layer thickness. Light that strikes the glass plate is absorbed to different degrees.
- it may also be, for example, a PET film, ie a film consisting of polyethylene terephthalate, which is blackened to different extents on the surface and thus allows light to pass through differently.
- Such a shadow or grayscale mask is placed on the layer, which can be structured photolithographically, that is, for example, can be photochemically crosslinked. It is then exposed through the shadow mask. This ensures that the photochemically crosslinkable layer is crosslinked to different degrees. This leads to different layer thicknesses in the layer, which was crosslinked to different degrees. Crosslinking achieves, in particular, that the layer becomes insoluble in the crosslinked areas. In addition, the layer remains soluble. Regularly, after crosslinking, a development step is performed to remove the non-crosslinked components. In this way, the desired structuring is achieved in only one step. A multiple alignment - as described above - is eliminated.
- the additional layer can be electrically conductive. If the method according to the invention is intended for the production of displays, different control of the pixels must be possible. This is possible if the additional layer consists of a semiconductive material or a material with a sufficiently low electrical conductivity.
- low molecular weight, crosslinkable hole conductors are provided as the material of the additional layer, for example the structure based on triarylamine with oxetane as the reactive group shown below:
- dienes and methacrylates can be used for photoinduced radical crosslinking.
- the chemical structures of such materials are shown below. a) b) c)
- crosslinkable, oligomeric or polymeric hole conductor materials are provided as material of the additional layer, since production conditions can be simplified in comparison to the low molecular weight, crosslinkable hole conductors. This is due to the good film-forming properties of oligomeric or polymeric hole conductor materials.
- the emitter layer which preferably produces white light, may consist of polymers, oligomers, small molecules, metal complexes, or mixtures thereof.
- An OLED structure of the present invention comprises in particular a plurality of thin, organic layers.
- ITO indium tin oxide
- HTL hole transport layer
- an additional PEDOT / PSS poly (3,4-ethylenedioxythiophene) / polystyrene sulfonate, Baytron P
- a layer can be applied to the hole-conducting layer, which layer either emits different colors
- Dyes contains (preferably about 0.05-100%, but also lower or higher concentrations are possible, for example 0.01 to 80%), for example a white-emitting copolymer or consists of several different color-emitting individual layers. Suitable materials are known from the publications "J. Liu et al., Adv. Mater. 1 7, 2974-2978 (2005) “and” B.W. D'Andrade et al., Adv., Mater., 1 6, 624-628 (2004) ".
- This can be deposited, for example, from solution or in a high vacuum.
- a cathode consisting of a metal or alloy with low electron work function (eg calcium, aluminum, magnesium / silver alloy), which has been vapor-deposited, for example, in a high vacuum) can be used to reduce the injection barrier for electrons
- LiF or CsF may have been vapor-deposited on a very thin layer of, for example, LiF or CsF
- the cathode may finally be coated with silver or with aluminum, but the transparent substrate may also adjoin the cathode Cathode or anode is fully or partially transparent or fully reflective depending on the need for light.
- the OLED structure comprises a plurality of thin, organic layers.
- a non-transparent substrate for example, a silicon wafer or a metal foil
- a completely or partially reflective or wholly or partially transparent electrode for example composed of ITO, silver, aluminum, gold, MoO 3 , nickel, calcium, barium, LiF, CsF or TiN
- This can serve either as an anode or as a cathode depending on the need.
- further reflective layers for example Bragg mirrors
- a completely or partially transparent second electrode is applied to the organic layers (for example composed of ITO, silver, aluminum, gold, MoO 3 , nickel, calcium, barium, LiF, CsF or TiN). Additional reflective layers (for example Bragg mirrors) may in turn be applied to this electrode, depending on requirements. In this embodiment, the light is emitted not through the substrate but through the top electrode (and any additional reflective layers above it).
- organic layers for example composed of ITO, silver, aluminum, gold, MoO 3 , nickel, calcium, barium, LiF, CsF or TiN.
- Additional reflective layers for example Bragg mirrors
- the light is emitted not through the substrate but through the top electrode (and any additional reflective layers above it).
- the invention is based on the idea of providing a first and second reflective layer which can at the same time assume electrode functions in order to be able to suitably control the component. Between the reflecting layers there is a layer with which in particular white light is generated. Between the reflecting layers is a layer which is provided in order to be able to structure suitably. In addition, further layers can be provided inside or outside the lossy optical resonator. The only important thing is that there is a layer in the optical resonator, which has been structured in only one step. The order of application of the desired layers is ultimately arbitrary. So it can For example, first the structured layer are applied, then a layer that emits white light and, if necessary. further, for example, known from the prior art functional layers.
- the possible color space can be utilized or produced in an improved manner.
- Brilliant colors not only compared to TFT or LCD technology, but also compared to other OLED lighting elements or OLED displays are therefore possible.
- white light illumination a more natural-acting spectrum can be generated.
- a substrate for example a CMOS chip, already comprise electronics, with which in the case of
- the patterned layer of the light emitting diode comprises not only three different thicknesses to represent three primary colors, but substantially more different thicknesses.
- a grayscale mask used for manufacturing then has not only three gray levels to provide three spectral colors, but significantly more color levels, such as twenty gradations. By emitting so many different colors from the light emitting diode, it is much easier to produce a desired light color, for example to emulate sunlight.
- the thickness of the structured layer increases or decreases in a wedge shape.
- the distance between the two reflecting surfaces of the resonator thus changes in a wedge shape.
- Such an organic light emitting diode can represent the entire color spectrum, the individual spectral colors are resolved spatially ordered.
- different areas of the aforementioned wedge are contacted by different electrodes. It is possible such a separate addressing of the different spectral line components.
- the light-emitting diode according to the invention with the wedge-shaped structure is part of a spectrometer, that is to say a component with which the spectral range of the light is spatially displayed side by side. Due to the wedge-shaped structure, the entire spectral range can be reproduced very well.
- a wedge-shaped structure according to the invention increases continuously from a minimum thickness d mm until a maximum thickness d max of the structure is reached.
- the increase stepped and the staircase includes a large number of steps with low step height. The lower the step height of each step, the more a result corresponding to the continuous increase is achieved. However, the continuous increase compared to a staircase-like increase is preferable.
- the light-emitting diode according to the invention comprises an ascending and / or falling structure within the lossy resonator and is used as illumination.
- the lighting emits different light colors, which are spatially separated from each other.
- a component which is able to reproduce spectral colors in a spatially ordered manner can also only be approximately wedge-shaped in the aforementioned sense, for example in the shape of a staircase.
- such a component is suitable for producing monochromatic integrated light sources for the sensor technology.
- Figure 1 outlines a structure of an embodiment of the invention in section.
- a silicon wafer 1 On a silicon wafer 1 is a 1 00 nm thick reflective layer 2 made of aluminum, which acts on the one hand as an electrode and on the other hand as a reflective layer of an optical resonator.
- the thickest point of the wedge-shaped layer 4 is 60 nm.
- the wedge-shaped layer consists of N, r ⁇ T-bis [4- (6 - [(3-ethyloxetan-3-yl) methoxy] hexyloxy) -phenyl] -N, r ⁇ T-bis (4-methoxyphenyl) biphenyl 4/4 ⁇ diamines / that is, a structure based on triarylamine with oxetane as a reactive group.
- an emitter layer 5 is deposited, which is able to emit white light.
- the emitter layer consists of a white-emitting copolymer and is 70 nm thick.
- the emitter layer 5 On the emitter layer 5 is an electron Injecting, 4 nm thick layer 6 of barium and another reflective layer 7, which consists of silver and 70 nm thick.
- the electrically conductive layer 7 is partially transparent, so that light is coupled out of the optical resonator via this layer 7, which comprises the two reflective layers 2 and 7.
- the electroluminescence spectra a to g shown in FIG. 2 could be generated.
- the normalized intensity "Normlized Intensity” is plotted against the wavelength “Wavelength” in nm.
- the individual light colors can be used, for example, to measure the transmission spectrum of a substance, liquid or solution in which the OLED is suitably combined with a photodetector.
- the functionality of a spectrometer is obtained.
- the dimensions of the manufactured device were much smaller than the dimensions of a commercially available spectrometer. According to the prior art, such a measurement is not possible.
- OLEDs produced according to the current state of the art emit over too broad a range of the spectrum (for example, white-emitting OLEDs, but also broadband red, green or blue-emitting OLEDs).
- the specular layers in the embodiment shown in Figure 1 need not necessarily act as electrodes at the same time. It is sufficient if the emitter layer is located between two layers functioning as an electrode. The layer whose layer thickness changes wedge-shaped does not necessarily have to be arranged within the two electrodes. The same applies to other embodiments of the invention, which comprise a layer with different layer thicknesses.
- the material can be selected more freely, since then it does not matter to what extent the layer with different layer thicknesses is electrically conductive or not.
- This layer with different layer thicknesses can then be an optically transparent electrical insulator.
- Figure 3 outlines the exposure 8 of a crosslinkable semiconductor 9 by grayscale mask 1 0.
- Different exposure doses cause different degrees of crosslinking in the areas 1 1, 1 2 and 1 3.
- the crosslinkable semiconductor for example consisting of N, N'-bis (4- (6 - ((3-ethyloxetan-3-y) methoxy)) - hexylpenyl) -N, N'-diphenyl-4,4'-diamine or else N, N 1 -bis [4- (6 - [(3-ethyloxetane -3-yl) methoxy] hexyloxy) -phenyl] -N, N 1 -bis (4- methoxyphenyljbiphenyl ⁇ ⁇ diamines is on a transparent oxide 1 4 so as to MoO. 3, the transparent oxide is on a
- the mirror may, for example, be made of aluminum, and the mirror 15 is in turn located on a substrate 16 that is made of, for example,
- Silicon dioxide and / or silicon may already include electronics, with which the pixels are driven accordingly.
- Figure 4 shows a schematic cross-sectional image through a display made with the present invention with red (R), green (G) and blue (B) subpixels. Shown is the following layer structure: 1 7: partially transparent metal mirror, z. B. Ag; 1 8: electron injection layer, e.g. Ba; 1 9: emitter layer 20: crosslinked semiconductor; 21: Transparent oxide, e.g. MoO 3 ; 22: Pixilierter metal mirror, z. AI; 23: substrate.
- 1 7 partially transparent metal mirror, z. B. Ag
- 1 8 electron injection layer, e.g. Ba
- 1 9 emitter layer 20: crosslinked semiconductor
- 21 Transparent oxide, e.g. MoO 3
- 22 Pixilierter metal mirror, z. AI
- 23 substrate.
- Figure 5 shows a schematic structure of a light source for lighting applications made with the present invention. Shown is the component prior to the deposition of the emitter layer, the electron injection layer and the reflective cathode.
- FIG. 6 shows an example of a lighting element which emits the color spectrum spatially separated.
- a reflective layer 1 00 is an optically transparent, hemispherical layer 1 01, which thus increases both continuously and decreases again.
- a conventional OLED structure 1 02 comprising two electrodes and an emitter layer located therebetween. The light originating from the emitter layer is usually reflected one or more times back and forth between the reflecting layer 100 and an opposing, outer, partially reflecting layer 103, before the light emerges through the layer 103.
- the layer 1 03 also acts as an electrode.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102008054435A DE102008054435A1 (de) | 2008-12-09 | 2008-12-09 | Organische Leuchtdiode mit optischem Resonator nebst Herstellungsverfahren |
PCT/EP2009/063422 WO2010066488A1 (de) | 2008-12-09 | 2009-10-14 | Organische leuchtdiode mit optischem resonator nebst herstellungsverfahren |
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EP2356711A1 true EP2356711A1 (de) | 2011-08-17 |
EP2356711B1 EP2356711B1 (de) | 2020-06-10 |
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EP09784011.0A Active EP2356711B1 (de) | 2008-12-09 | 2009-10-14 | Organische leuchtdiode mit optischem resonator nebst herstellungsverfahren |
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US (1) | US8878164B2 (de) |
EP (1) | EP2356711B1 (de) |
JP (1) | JP5603346B2 (de) |
KR (1) | KR101596875B1 (de) |
CN (1) | CN102246329A (de) |
DE (1) | DE102008054435A1 (de) |
SG (1) | SG171416A1 (de) |
WO (1) | WO2010066488A1 (de) |
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DE102010029317A1 (de) | 2010-05-26 | 2011-12-01 | Universität Zu Köln | Strukturierte Beschichtung |
JP5016712B2 (ja) * | 2010-09-21 | 2012-09-05 | 三井金属鉱業株式会社 | 電極箔および有機デバイス |
KR20120106568A (ko) * | 2011-03-18 | 2012-09-26 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 발광 장치 및 발광 장치의 제작 방법 |
WO2013069432A1 (ja) * | 2011-11-07 | 2013-05-16 | 昭和電工株式会社 | 有機発光素子、その製造方法およびその用途 |
TWI501439B (zh) * | 2012-04-19 | 2015-09-21 | Innocom Tech Shenzhen Co Ltd | 影像顯示系統 |
CN103915571A (zh) * | 2014-01-27 | 2014-07-09 | 上海天马有机发光显示技术有限公司 | 一种amoled显示面板及膜层制作方法、显示装置 |
DE102014102191B4 (de) | 2014-02-20 | 2017-12-28 | Osram Oled Gmbh | Organisches lichtemittierendes Bauelement mit verbessertem Farbwiedergabeindex |
KR20160130466A (ko) * | 2014-03-07 | 2016-11-11 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 발광 소자, 발광 장치, 전자 기기, 및 조명 장치 |
DE102014103675B4 (de) * | 2014-03-18 | 2023-10-26 | Pictiva Displays International Limited | Organisches lichtemittierendes Bauelement |
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- 2009-10-14 SG SG2011038023A patent/SG171416A1/en unknown
- 2009-10-14 KR KR1020117015758A patent/KR101596875B1/ko active IP Right Grant
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EP2356711B1 (de) | 2020-06-10 |
KR101596875B1 (ko) | 2016-02-23 |
KR20110110151A (ko) | 2011-10-06 |
JP2012511796A (ja) | 2012-05-24 |
WO2010066488A1 (de) | 2010-06-17 |
US20110303905A1 (en) | 2011-12-15 |
DE102008054435A1 (de) | 2010-06-10 |
SG171416A1 (en) | 2011-07-28 |
CN102246329A (zh) | 2011-11-16 |
US8878164B2 (en) | 2014-11-04 |
JP5603346B2 (ja) | 2014-10-08 |
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